BRUSSELS — A three-week wave of massive cyber-attacks on the small Baltic country of Estonia, the first known incidence of such an assault on a state, is causing alarm across the western alliance, with Nato urgently examining the offensive and its implications. While Russia and Estonia are embroiled in their worst dispute since the collapse of the Soviet Union, a row that erupted at the end of last month over the Estonians’ removal of the Bronze Soldier Soviet war memorial in central Tallinn, the country has been subjected to a barrage of cyber warfare, disabling the websites of government ministries, political parties, newspapers, banks, and companies. Nato has dispatched some of its top cyber-terrorism experts to Tallinn to investigate and to help the Estonians beef up their electronic defences. ‘This is an operational security issue, something we’re taking very seriously,’ said an official at Nato headquarters in Brussels. ‘It goes to the heart of the alliance’s modus operandi.’ Alarm over the unprecedented scale of cyber-warfare is to be raised tomorrow at a summit between Russian and European leaders outside Samara on the Volga. While planning to raise the issue with the Russian authorities, EU and […]